Table 2.
Univariate analysis of factors associated to MT > 0 among 35–44 years adults in Guangdong Province
| Variables | N (%) | MT > 0 (%) | P-valuea |
|---|---|---|---|
| Age | |||
| 35–39 years old | 720 (51.1) | 252 (35.0) | < 0.001* |
| 40–44 years old | 688 (48.9) | 317 (46.1) | |
| Year of surveys | |||
| 1995 | 400 (28.4) | 163 (40.8) | 0.019* |
| 2005 | 720 (51.1) | 309 (42.9) | |
| 2015 | 288 (20.5) | 96 (33.3) | |
| Sex | |||
| Male | 720 (51.1) | 255 (35.4) | < 0.001* |
| Female | 688 (48.9) | 313 (45.6) | |
| Residence | |||
| Urban | 705 (50.0) | 264 (37.4) | 0.025* |
| Rural | 704 (50.0) | 305 (43.3) | |
| Education level | |||
| Low educational attainment | 800 (56.8) | 363 (45.4) | < 0.001* |
| High educational attainment | 608 (43.2) | 205 (33.7) | |
| Annual household income | |||
| Low income | 457 (32.7) | 196 (42.9) | 0.404 |
| Medium income | 687 (49.2) | 270 (39.3) | |
| High income | 253 (18.1) | 98 (38.7) | |
| Caries | |||
| No | 552 (39.2) | 129 (23.4) | < 0.001* |
| Yes | 856 (60.8) | 439 (51.3) | |
| Periodontal pocket | |||
| No | 981 (69.7) | 369 (37.6) | 0.001* |
| Yes | 427 (30.3) | 199 (46.7) | |
| Tooth brushing | |||
| ≤ Once per day | 656 (46.6) | 273 (41.6) | 0.403 |
| ≥ Twice per day | 752 (53.4) | 296 (39.4) | |
| Dental flossing | |||
| No | 1375 (97.8) | 555 (40.3) | 0.855 |
| Yes | 31 (2.2) | 12 (38.7) | |
| Toothpaste | |||
| Nonfluoride toothpaste | 744 (53.2) | 301 (40.5) | 1.000 |
| Fluoride toothpaste | 656 (46.8) | 265 (40.4) | |
| Sweet consumption | |||
| Rarely | 221 (16.9) | 78 (35.3) | 0.256 |
| Sometimes | 953 (72.8) | 392 (41.1) | |
| Often | 136 (10.3) | 57 (41.9) | |
| Smoking consumption | |||
| No | 943 (67.0) | 388 (41.1) | 0.434 |
| Yes | 465 (33.0) | 181 (38.9) | |
| Alcohol consumption | |||
| No | 801 (57.0) | 336 (41.9) | 0.161 |
| Yes | 604 (43.0) | 231 (38.2) | |
| Time since last dental visit | |||
| < one year | 269 (29.7) | 146 (54.3) | 0.276 |
| ≥ one year | 638 (70.3) | 321 (50.3) | |
| The reason of the last dental visit (within a year) | |||
| Treatment | 249 (93.1) | 137 (55.0) | 0.223 |
| Consultation | 12 (4.5) | 4 (33.3) | |
| Prevention | 6 (2.4) | 5 (71.4) | |
| The payment mode of the dental visit (within a year) | |||
| Nonfully out of pocket | 56 (20. 8) | 27 (48.2) | 0.290 |
| Entirely out of pocket | 212 (79.2) | 119 (56.1) | |
aChi-squared test
*Statistical significance p < 0.05